Transport regulation of recombinant gene expression in E. coli and B. subtilis

Boyer, Jeand D.; Vieth, W. R.; Bailey, Kevin M.; Pedersen, Henrik

doi:10.1016/0734-9750(92)90300-x

Cited by 3 publications

(1 citation statement)

References 46 publications

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“…In addition to their new role as TIs, Bi 2 Te 3 and related materials are among the best and widely used thermoelectric materials for near RT applications [9][10][11][12][13]. Apart from being thermoelectric materials, Bi 2 Se 3 was also used in infrared detectors [14] while Sb 2 Te 3 utilized in chalcogenide alloys as the phase changing material for information storage [15].…”

Section: Introductionmentioning

confidence: 99%

Micro-Raman spectroscopy of mechanically exfoliated few-quintuple layers of Bi2Te3, Bi2Se3, and Sb2Te3 materials

Shahil

Hossain

Goyal

et al. 2012

Journal of Applied Physics

285

147

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Bismuth telluride (Bi 2 Te 3 ) and related compounds have recently attracted strong interest owing to the discovery of the topological insulator properties in many members of this family of materials. The few-quintuple films of these materials are particularly interesting from the physics point of view. We report results of the micro-Raman spectroscopy study of the "graphene-like" exfoliated few-quintuple layers of Bi 2 Te 3 , Bi 2 Se 3 and Sb 2 Te 3 . It is found that crystal symmetry breaking in few-quintuple films results in appearance of A 1usymmetry Raman peaks, which are not active in the bulk crystals. The scattering spectra measured under the 633-nm wavelength excitation reveals a number of resonant features, which could be used for analysis of the electronic and phonon processes in these materials. In order to elucidate the influence of substrates on the few-quintuple-thick topological insulators we examined the Raman spectra of these films placed on mica, sapphire and hafnium-oxide substrates. The obtained results help to understand the physical mechanisms of Raman scattering in the few-quintuple-thick films and can be used for nanometrology of topological insulator films on various substrates.

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Section: Introductionmentioning

confidence: 99%

Micro-Raman spectroscopy of mechanically exfoliated few-quintuple layers of Bi2Te3, Bi2Se3, and Sb2Te3 materials

Shahil

Hossain

Goyal

et al. 2012

Journal of Applied Physics

285

147

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Design of a sorbitol-activated nitrogen metabolism-dependent regulatory system for redirection of carbon metabolism flow in Bacillus licheniformis

He,

Li,

et al. 2023

Nucleic Acids Research

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Synthetic regulation of metabolic fluxes has emerged as a common strategy to improve the performance of microbial cell factories. The present regulatory toolboxes predominantly rely on the control and manipulation of carbon pathways. Nitrogen is an essential nutrient that plays a vital role in growth and metabolism. However, the availability of broadly applicable tools based on nitrogen pathways for metabolic regulation remains limited. In this work, we present a novel regulatory system that harnesses signals associated with nitrogen metabolism to redirect excess carbon flux in Bacillus licheniformis. By engineering the native transcription factor GlnR and incorporating a sorbitol-responsive element, we achieved a remarkable 99% inhibition of the expression of the green fluorescent protein reporter gene. Leveraging this system, we identified the optimal redirection point for the overflow carbon flux, resulting in a substantial 79.5% reduction in acetoin accumulation and a 2.6-fold increase in acetate production. This work highlight the significance of nitrogen metabolism in synthetic biology and its valuable contribution to metabolic engineering. Furthermore, our work paves the way for multidimensional metabolic regulation in future synthetic biology endeavors.

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Mathematical Modeling of the Synthesis of a Cloned Lytic β‐1,4‐Endoglucanase in Bacillus subtilisa

Shene

Mir

Andrews

et al. 1996

Annals of the New York Academy of Sciences

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Transport regulation of recombinant gene expression in E. coli and B. subtilis

Cited by 3 publications

References 46 publications

Micro-Raman spectroscopy of mechanically exfoliated few-quintuple layers of Bi2Te3, Bi2Se3, and Sb2Te3 materials

Micro-Raman spectroscopy of mechanically exfoliated few-quintuple layers of Bi2Te3, Bi2Se3, and Sb2Te3 materials

Design of a sorbitol-activated nitrogen metabolism-dependent regulatory system for redirection of carbon metabolism flow in Bacillus licheniformis

Mathematical Modeling of the Synthesis of a Cloned Lytic β‐1,4‐Endoglucanase in Bacillus subtilisa

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